衬片材料对液粘传动摩擦副温度场影响的有限元模拟  

Finite element simulation of influence of lining's material on temperature field of friction pair in hydro-viscous drive

作　　者：谢方伟[1] 侯友夫[1] 

机构地区：[1]中国矿业大学机电工程学院,江苏徐州221008

出　　处：《功能材料》2010年第A01期41-44,共4页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(50975275)

摘　　要：结合热传导模型和边界条件,建立对偶片瞬态温度场理论模型,推导出对偶片修正热流密度公式,并用ANSYS对铜基和纸基摩擦副对应的对偶片温度场进行求解。结果表明,两种摩擦副对应的对偶片表面温度分布规律基本相同,温度随半径的增大而升高,由于外径处对偶片与工作油存在对流换热,最高温度并不在外径处;相同工况下,纸基较铜基摩擦副对应的对偶片的表面温度高;对偶片变形量与半径近似成线性关系,且纸基摩擦副对应的对偶片变形量较大;最后指出液粘传动摩擦副材料的选择原则。有限元分析与试验研究结果基本一致,证明了理论分析的正确性,研究结果为液粘传动摩擦副的设计与衬片材料的选择具有一定的指导作用。Combining heat conduction model and boundary conditions of steel disk,a theory model of transient temperature field was established.And the modified formula for heat flux was deduced.Then the temperature field of the steel disk which belongs to copper-based friction pair and paper-based friction pair,was solved in ANSYS.The results show that the distribution law of surface temperature of the two steel disks is almost same.The surface temperature increases with the radius,while the highest temperature doesn＇t appear at outer radius,for there existing convection heat transfer between outer radius and working oil.Under the same condition,the surface temperature of the steel disk belonging to the paper-based friction pair is much higher.The deformation of the steel disk is approximately a linear relationship with the radius,and larger deformation appears in the steel disk belonging to the paper-based friction pair.Finally,the selection principle of the friction lining＇s material is given.The experimental results are the same as that of numerical simulation.Therefore,research results can provide an important guidance to the design of the friction pair and the selection of the friction lining＇s material in hydro-viscous drive.

关 键 词：衬片材料 对偶片 温度场 有限元 液粘传动 

分 类 号：TB331[一般工业技术—材料科学与工程]